Do not import a tune across unidentified hardware
Controller revision, gyro, firmware version, motor protocol, propellers and frame stiffness affect behaviour. A backup from another unit should be reviewed rather than copied blindly.
Price:
$
Model:
X4-7 Betaflight handover
Wheelbase:
Archived: seven-inch X4-7
Flight Control:
Betaflight target — identify board and version
Empty Weight:
Speed requires controlled test record
Power Battery:
Archived: 4S 5100mAh — verify pack
Wingspan(without propellers):
Archived: 25 × 31 cm
Folded Size(without propellers):
Archived packed reference: 37 × 11 cm
Empty Weight:
Archived: 1.35kg — measure supplied build
Satellite Navigation System:
915MHz receiver reference — identify compliant radio
Endurance Time:
Duration requires selected tune and mass test
Maximum Horizontal Speed:
Speed requires controlled test record
Image Transmission:
Camera and video ecosystem must be named
Electronic Speed Controller:
Archived: 45A four-in-one ESC
The preserved X4-7 article emphasises Betaflight, a seven-inch frame, 45A four-in-one ESC, 4S 5100mAh battery and 1.35kg mass. Its most useful buyer angle is tune ownership. Rates, filtering, motor protocol, receiver mapping, modes and failsafe should arrive as a dated backup tied to the controller, propulsion parts and installed camera.
| Item | What to record | Receiving check |
|---|---|---|
| Controller | Board model, target and firmware version | Identity matches backup |
| Tune | Rates, filters, profiles and motor protocol | Controlled response check |
| Inputs | Receiver model, channel map, modes and failsafe | Propeller-off bench record |
| Hardware | 45A ESC, motors, propellers, 4S pack and camera | Bill of materials matches unit |
Controller revision, gyro, firmware version, motor protocol, propellers and frame stiffness affect behaviour. A backup from another unit should be reviewed rather than copied blindly.
The source mentions 915MHz but not a complete compliant radio package. Name transmitter, receiver, antenna and regional settings, then test the delivered link in the permitted operating area.

Request the format appropriate to the delivered firmware plus screenshots of key setup pages.
Rates are a controlled choice; train and approve them for the responsible operator and environment.
Controller, firmware, receiver, motor, propeller, battery or camera changes should trigger review.
Ask for hardware identity, a clean configuration backup and a receiving checklist in the quotation.
Keep firmware, receiver and replacement-part records with the delivered Betaflight configuration.

Review the document-led X4-7 INAV listing through current model photos, component labels, firmware evidence and its twenty/thirty-minute conflict....

Audit the X4-10 S7mini page by resolving controller and 4S/6S battery conflicts and verifying GNSS hardware, firmware and supported functions....

Choose the X4-7 45A ESC and optional GPS configuration by controller role, GNSS hardware, propulsion match, video system and handover records....

Review the X4-10 S7mini for racing practice or inspection by resolving controller and 4S/6S conflicts and keeping separate role evidence....

Verify X4-10 portability through a case-to-ready workflow while resolving S7mini, 4S/6S battery, 20/30m/s and packed-size conflicts....

Audit the document-led X4-1900H X9 page against conflicting X8, 14.5/16kg and 29/52kg records before publication....




I’ve tried several FPV drones, and this one stands out for quality and performance. The build feels solid, and the video feed is crystal clear. Definitely recommended for serious hobbyists.2025-12-29
I mounted a lightweight camera on my Long Range FPV and got stunning FPV footage over open fields and trails. The signal stayed strong over long distances, and the build held up well to minor bumps. Definitely a great rig for scenic long flights2025-12-30
Using this drone for scenic long-range flights has been an amazing experience. Controls feel smooth even at the edge of transmission range, and the battery life lets me stay airborne for extended sessions. Ideal for explorers and aerial photographers alike2025-12-30
The long-distance capabilities of this drone impressed me right away. It kept a reliable link out to several kilometers, and the sturdy build handled a few rough landings without issue. A solid choice for expansive FPV flights2025-12-30